baber/WOPTO huggingface dataset:
Patent TW-498293-B (TW)
Title: Device authentication and encrypted communication system offering increased security
Inventor: TATEBAYASHI MAKOTO
IPC: G07B15/06
Filed: 1999-02-24
Granted: 2002-08-11
Abstract: A system composed of a plurality of user devices, each storing unique secret information, a system device and a control unit. The control unit produces key capsule data by performing a digital signature conversion with message recovery on the unique secret information for each user device and distributes the unique secret information to the user devices. When device authentication and encrypted communication is performed, each user device transmits the key capsule data distributed by the control unit to the system device. The system device receives the data and recovers the unique secret information from the key capsule data by a digital signature verification conversion with message recovery, which uses the verification key distributed in advance by the control unit. Thus, the user device and the system device can share unique secret information and, using it as a key, perform device authentication and encrypted communication by performing encryption and decryption based on a secret key encryption algorithm.
Patent TW-393376-B (TW)
Title: Improved methods and apparatus for chemical mechanical planarization (CMP) of a semiconductor wafer
Inventor: WISE MICHAEL L
IPC: B24B37/30
Filed: 1999-04-13
Granted: 2000-06-11
Abstract: Areas of different temperatures are provided on a semiconductor wafer to improve uniformity in polishing rates during CMP.
Patent TW-442273-B (TW)
Title: Trocar
Inventor: PEERY JOHN R
IPC: A61B17/34
Filed: 1999-04-23
Granted: 2001-06-23
Abstract: An implant retention trocar includes a cannula for puncturing the skin of an animal and an obturator for delivering the implant beneath the skin of the animal. The implant retention trocar has a cannula distal tip design which causes a minimum of trauma and tearing of tissue during implant insertion. A spring element received within the cannula prevents an implant which is to be inserted into an animal from falling out of the cannula during the implant insertion process. The spring element includes a longitudinal leg which is folded with a zig-zag shaped bend. When the spring element is inserted into the cannula the zig-zag shaped bend of the longitudinal leg retains the implant within the cannula.
Patent TW-407365-B (TW)
Title: Semiconductor device with reduced thickness
Inventor: INABA TAKEHITO
IPC: H01L23/12
Filed: 1999-04-29
Granted: 2000-10-01
Abstract: Internal electrodes and external lead wiring lines are formed on the front surface of a substrate of a semiconductor device, and solder bumps electrically connected to the external lead wiring lines via through holes are provided on the rear surface of the substrate. A first semiconductor chip is mounted on the surface of the substrate, and a second semiconductor chip is mounted on the rear surface of the substrate. Electrodes of the first semiconductor chip are connected to bonding pads at one side ends of the internal wiring lines, and electrodes of the second semiconductor chip are connected to the bonding pads at the other ends of the internal wiring lines and the external lead wiring lines with bonding wires passing through openings provided in the substrate. The solder bumps are formed with a height equal to or greater than the thickness of the second semiconductor chip so that, when the semiconductor device is mounted on an external mounting board or the like, a gap is formed between the substrate of the semiconductor device and the external mounting board by the height of the solder bumps themselves. The second semiconductor chip mounted on the rear surface of the substrate is accommodated in the gap.
Patent TW-421873-B (TW)
Title: Metallization process of semiconductor device
Inventor: JUNG BYUNG-HYUN
IPC: H01L23/522
Filed: 1999-05-10
Granted: 2001-02-11
Abstract: A metallization process of a semiconductor device is disclosed. The metallization process of a semiconductor device comprising the steps of: providing a semiconductor substrate having a junction region; forming an insulating layer on the upper of the semiconductor substrate; forming a contact hole by patterning the insulating layer so as to expose one portion of the junction region; forming a glue layer on the upper of the insulating layer, and at the bottom and inner surfaces of the contact hole; forming a barrier metal layer on the glue layer; forming an Mg layer as a solid solution layer on the barrier metal layer; forming a metal layer on the Mg layer; and forming a metal wiring layer having more liquidity than that of the metal layer, by melting the Mg layer to the metal.
Patent TW-556015-B (TW)
Title: Active matrix type liquid crystal display
Inventor: WATANABE MAKOTO
IPC: G02F1/1343
Filed: 1999-06-01
Granted: 2003-10-01
Abstract: A liquid crystal display panel is provided to an active matrix type liquid crystal display. A TFT side substrate and an opposite side substrate are provided to the liquid crystal display panel. A liquid crystal layer is provided between these substrates. The product (retardation) ""Deltan.d"" of the refractive index anisotropy Deltan of a liquid crystal material in the liquid crystal layer and the thickness d of the liquid crystal layer is 0.12 to 0.18 mum.
Patent TW-420950-B (TW)
Title: Method and apparatus for preparing and transmitting electronic program information and apparatus for producing electronic program guide from the electronic program information
Inventor: ARAI YUKO
IPC: H04N21/431
Filed: 1999-06-03
Granted: 2001-02-01
Abstract: General electronic program information described on a general level and individual electronic program information described on an individual level are prepared according to electronic program information of a channel service of a broadcast service enterpriser for each channel service according to electronic program information detailed degree setting information. The electronic program information detailed degree setting information indicates a detailed degree for contents of the individual electronic program information described on the individual level and a detailed degree for contents of the general electronic program information described on the general level. The general level corresponds to a low detailed degree, and the individual level corresponds to a high detailed degree. One piece of individual electronic program information of a particular channel service and pieces of general electronic program information of channel services other than the particular channel service are multiplexed and transmitted to each viewer. Accordingly, the general electronic program information and the individual electronic program information can be transmitted while effectively using a data transmission band.
Patent TW-402554-B (TW)
Title: Calibration tool and method for robot arm
Inventor: LI CHUAN-DE
IPC: B25J19/00
Filed: 1999-06-14
Granted: 2000-08-21
Abstract: This invention provides a kind of calibration tool and method for robot arm. It has a simple and standard calibration procedure. The calibration tool of robotic arm is a circular transparent plate having at least an symbolized line and the size of the calibration tool is equal to the size of the wafer processed by the robot arm. The essence of the calibration method is to put the calibration tool at the wafer position before using the robotic arm to moves the wafer; then, drive the robotic arm to pick the calibration tool and to move the calibration tool between the reaction chamber and the wafer cassette. Because transparent plate is used instead of opaque wafer, it is easy to adjust the movement of robot arm and to record the information of movement. Therefore, when the robotarm is used to process the wafer, the recorded information can be used effectively to control the movement of robot arm.
Patent TW-474834-B (TW)
Title: Degrading agent and method of nitrogen fluorides
Inventor: ATOBE HITOSHI
IPC: B01D53/34
Filed: 1999-06-29
Granted: 2002-02-01
Abstract: This invention relates to a simple and effective method for hazardlessization of nitrogen fluorides having hazard to environment. This invention provides a degrading method of nitrogen fluorides which comprises contacting a solid reactant consisting of monomer carbons, aluminum compounds, iron compounds, manganese compounds and/or alkali earth metal, alkali metal compounds nickel compounds and/or copper compounds with a gaseous nitrogen fluoride at a temperature of higher than 200 DEG C, and fixing fluorine of said nitrogen fluorides on the said reactant at mean time inhibiting forming byproduct of nitrogen oxides, flour carbon, mono oxygen carbon.
Patent TW-436804-B (TW)
Title: Memory device having a minimum number of input and output sense amplifiers
Inventor: KANG KYUNG-WOO
IPC: G11C11/4091
Filed: 1999-07-01
Granted: 2001-05-28
Abstract: A memory device in which the number of input and output sense amplifiers is reduced to improve the layout efficiency. The memory device having a plurality of memory banks arranged in rows and columns, includes a plurality of first input and output lines and one or more switching units. The plurality of first input and output lines are included in each of the plurality of memory banks and each of them has N data input and output line pairs, where N is a natural number of two or more. Each of the plurality of first input and output lines transmits data written to or read from each of the memory banks. Also, one or more switching units are connected to two or more first input and output lines, and selectively connects the first input and output line corresponding to the memory bank selected during the reading and the writing of data to the second input and output line according to activation of the bank selection signal. The memory device further includes at least one data input and output device transmitting data from or to the second input and output line, during the reading or the writing data.
Patent TW-448670-B (TW)
Title: A feature oriented digital watermarking technique for multimedia
Inventor: JANG JEN-CHENG
IPC: H04L9/00
Filed: 1999-07-19
Granted: 2001-08-01
Abstract: We invented a novel digital watermarking technique for digital multimedia. The secret key, used to retrieve watermark, is generated from the extracted features of host media in the proposed scheme. Our scheme achieves the requirements for watermarking techniques. The proposed algorithm enables resistance to many attacks, such as filtering, lossy compression, cropping, rotating and so on. Furthermore, the watermarked medium are the same as the original one, which means that there are not limited number of times to embed watermarks. In particular, our scheme is not only suitable for ordinary distortion allowable media, but can also be applied to distortion not allowable media.
Patent TW-426976-B (TW)
Title: Chip size package structure with improved thin substrate structure
Inventor: TAO SU
IPC: H01L23/28
Filed: 1999-10-06
Granted: 2001-03-21
Abstract: This invention is about a kind of chip size package structure with improved thin substrate structure. The plated through hole (PTH) on the outer periphery of substrate is shifted outward to the portion below the inside of chip rim. Because the PTH has plated-copper, the shifted PTH still can provide the supporting force for chip rim during the resin molding such that the chip has uniform subjected-force and the crack is not easily generated. Additionally, a layer of copper mesh is coated on the periphery, which has no PTH and no wiring position, of substrate to enforce the supporting strength of substrate with respect to chip such that the crack of chip is not easily generated. Furthermore, the virtually placed PTH is set on the wiring of the outer periphery to make the virtually placed PTH locate at the portion below the inside of chip rim so as to provide the supporting force for the chip rim. Therefore, the subjected force of chip is uniform and the crack is not easily generated.
Patent TW-425649-B (TW)
Title: Probe card for testing semiconductor device, and semiconductor device test method
Inventor: MARUYAMA SHIGEYUKI
IPC: H01L21/66
Filed: 1999-10-18
Granted: 2001-03-11
Abstract: The present invention relates to the testing method of a probe card and semiconductor device to conduct the testing to each chip in the wafer condition where a plurality of chips and CSPs (Chip Size Packages) are formed. The probe card is characterized by including a flexible contact board, a plurality of contact electrode groups provided in a predetermined layout on the contact board, a rigid base provided on the contact board between the contact electrode groups to have an aperture to expose the contact board of the area where the contact electrode is formed and wiring provided on the contact board and connected to the contact electrode. The advantages of the probe card is that it can always attain good contact condition of each chip and electrode pad of CSP on the occasion of testing the chip and CSP in the wafer condition.
Patent TW-482977-B (TW)
Title: Keyboard support platform and keyboard support platform assembly
Inventor: HUDSON RANDY
IPC: A47B21/03
Filed: 1999-11-05
Granted: 2002-04-11
Abstract: There is disclosed an adjustable tilt mechanism for a keyboard support platform. The keyboard support platform is of the type that includes a linkage for connecting the platform to a work surface. The linkage further includes connecting arms which pivotally connect the keyboard support platform to the work surface. The adjustable tilt mechanism of the present invention includes a tilt adjustment member that is movable transversely relative to the pivot axis of the platform. Engaging the tilt adjustment member is an angled shaft which is fixed to the platform between the sides of the platform. The tilt adjustment member is also pivotal about a second fixed shaft that is parallel to the pivot axis of the platform. A releasable latching member is mounted on the connecting arms for engaging and releasing the tilt adjustment member. In operation, upon the release of the latching member, slidable movement of the tilt adjustment member alters the pitch of the keyboard support platform, thereby permitting selective adjustment of the work angle of the keyboard.
Patent TW-449541-B (TW)
Title: Tire vulcanizing apparatus
Inventor: ICHIMARU HIRONOBU
IPC: B29D30/00
Filed: 1999-11-22
Granted: 2001-08-11
Abstract: The present invention provides a tire vulcanizing apparatus, which simultaneously performs treatments respectively for a plurality of unprocessed tires and vulcanized tires to significantly increase the operation efficiency. The tire vulcanizing apparatus according to the present invention is arranged with a tire receiving position X1, a tire supplying position X2, a tire vulcanizing position X3 and a tire fetching position X4, and comprises: a receiving table 2 for receiving an unprocessed tire T1 in the tire receiving position; a tire supplying device 7 for receiving the unprocessed tire placed on said receiving table and setting said tire on the lower die 3 in the tire supplying position; an upper die 5 for performing vulcanizaiton shaping of the unprocessed tire between the upper die and the lower die in the tire vulcanizing position; and a fetching device 4 for setting the vulcanized tire T2 received from the upper die in the tire vulcanizing position into a pressure cooling device 6 and fetching the cooled tire T3 onto the transporting conveyor 8 in the tire fetching position. A translating device 11 is provided in the structure by which a translating unit 1 formed by integrally connecting the receiving table, the lower die and the fetching device with each other may reciprocate so that the receiving table, the lower die and the fetching device simultaneously reciprocate between said positions.
Patent TW-422758-B (TW)
Title: Preventative maintenance method for backing film in chemical mechanical polishing and preventative maintenance apparatus using the method
Inventor: CHEN TING-KOU
IPC: B24B37/04
Filed: 1999-12-02
Granted: 2001-02-21
Abstract: The present invention provides a preventative maintenance method for backing film in chemical mechanical polishing and a preventative maintenance apparatus using the method. The present invention uses a laser to punch a hole on the backing film in advance thereby avoiding the restriction of manually drilling a hole on the polishing backing in a conventional backing film. Furthermore, the present invention provides a hole-matching plate to greatly reduce the down time of a chemical mechanical polishing machine due to preventative maintenance thereby increasing the efficiency and simplifying the procedure of preventative maintenance.
Patent TW-434660-B (TW)
Title: Apparatus for wafer treatment for the manufacture of semiconductor devices
Inventor: KWAG GYU-HWAN
IPC: H01L21/683
Filed: 1999-12-09
Granted: 2001-05-16
Abstract: An apparatus is provided for wafer treatment during the manufacture of semiconductor devices. The apparatus for wafer treatment includes a shaft, a chuck supported by the shaft for holding a wafer to be treated, a solution nozzle for supplying a treatment solution for wafer treatment onto the wafer, a gas supplier for supplying a gas to the back side of the wafer, and a heater for heating the gas supplied to the back side of the wafer. The use of this apparatus improves the uniformity of a treatment process such as an etching process or a cleaning process by minimizing the temperature changes of the treatment solution supplied onto the wafer mounted on the spin chuck of the apparatus during the wafer treatment process.
Patent TW-480296-B (TW)
Title: Yarn comprising polyethylene terephthalate acid, its manufacture method and its application as musical instrumental string
Inventor: OUE KAZUTO
IPC: A63B51/02
Filed: 1999-12-27
Granted: 2002-03-21
Abstract: The present invention provides a yarn composed of polythylene terephthalate acid fibers, particularly polyethylene terephthalate multifilamentary fibers having a single-fiber size in a range from 1 to 56 dtex and a total fiber size in a range from 2000 to 22000 dtex. Further, the present invention provides a racket string composed of polyethylene terephthalate multifilamentary fibers having a single-fiber size in a range from 1 to 56 dtex and a total fiber size in a range from 7000 to 22000 dtex, and a musical instrumental string composed of polyethylene terephthalate multifilamentary fibers having a single-fiber size in a range from 1 to 56 dtex and a total fiber size in a range from 2000 to 14000 dtex. The yarn according to the present invention is high in strength, elastic recovery and stress-retaining rate as well as excellent in water resistance, softness and homogeneousity of yarn property. The racket string according to the present invention can be set across a racket frame, for example, for tennis etc. When the string is set, the string elasticity is high and can be maintained for a long time. Also, this racket string is excellent in impact resistance, durability and water resistant. The musical instrumental string is stable in tuning over time and in humidity change as well as excellent in tunability.
Patent TW-488147-B (TW)
Title: Close loop control apparatus and method for a scanner
Inventor: JANG TSANG-HUAI
IPC: H04N1/04
Filed: 2000-01-26
Granted: 2002-05-21
Abstract: Close loop control apparatus and method for a kind of scanner are disclosed in the present invention. The linear optical ruler is installed on the transparent glass of the scanner and is located on the object plane for forming image by charge coupled device (CCD) or contact image sensor. In the scanning process, image is formed on the photosensitive devices such as CCD or contact image sensor by using the black-white line pair on the optical rule. Furthermore, the signal output by CCD or contact image sensor is used to do signal processing and mathematical calculation so as to reach close loop design of controlling scanning speed and direction.
Patent TW-I274052-B (TW)
Title: Mixture of isomeric nonanol diesters of adipic or phthalic acid
Inventor: THIL LUCIEN
IPC: C08L27/06
Filed: 2000-02-01
Granted: 2007-02-21
Abstract: The mixture described is a mixture of isomeric nonanol diesters of a dicarboxylic acid, selected from the class consisting of a mixture of diesters of adipic acid in the 1H HMR spectrum of which, observed in CDCl3, the ratio of the area under the resonance signals at chemical shifts in the range from 1.0 to 2.0 ppm with respect to TMS to the area under the resonance signals at chemical shifts in the range from 0.5 to 1.0 ppm with respect to TMS is from 1.20 to 5.00 and a mixture of diesters of phthalic acid, in the 1H NMR spectrum of which, observed in CDCl3, the ratio of the area under the resonance signals at chemical shifts in the range from 1.1 to 3.0 ppm with respect to TMS to the area under the resonance signals at chemical shifts in the range from 0.5 to 1.1 ppm with respect to TMS is from 1.00 to 4.00. The diesters of adipic and phthalic acid are suitable as plasticizers for PVC-based molding compositions and have high compatibility, a low cold crack temperature, low torsional rigidity and/or high thermal stability.
Patent TW-464865-B (TW)
Title: Semiconductor integrated circuit and semiconductor memory device including overdriving sense amplifier
Inventor: MORI KAORU
IPC: G11C7/22
Filed: 2000-02-10
Granted: 2001-11-21
Abstract: A transistor of a driver in the semiconductor integrated circuit according to the present invention has its gate connected to a controlling circuit, and has its drain connected to a sense amplifier. The controlling circuit supplies the gate of the transistor with a gate-to-source voltage exceeding or below other power supply voltages. The drain-to-source resistance of the transistor in the on state becomes sufficiently lower as compared with that in the case of supplying the power supply voltages between the gate and source of the transistor. Accordingly, the amplifying speed of the sense amplifier is heightened without altering the sense amplifier and the driver. Besides, the amplifying speed of the sense amplifier is heightened without raising the power supply voltage which supplies the carriers to the driver. The semiconductor memory device according to the present invention switches the driving supply voltage for the sense amplifier from the first supply voltage, to the second supply voltage lower than the first voltage. The timing at which the first supply voltage is switched to the second supply voltage is controlled in accordance with the voltage on a dummy bit line which is driven by a monitoring sense amplifier. Accordingly, even when the driving speed of the sense amplifier using the overdriving system has fluctuated due to the fluctuation of the first supply voltage, the driving supply voltage of the sense amplifier can be always switched to the second supply voltage at the appropriate timing.
Patent TW-475065-B (TW)
Title: Optical system of optical pick-up
Inventor: MARUYAMA KOICHI
IPC: G11B7/1353
Filed: 2000-03-04
Granted: 2002-02-01
Abstract: The present invention relates to an optical system of an optical pick-up that is used in optical discs DVD and CD. The system includes a light source portion for selectively emitting a first laser beam (650 nm) and a second laser beam (780 nm), and an objective lens for converging the laser beam from the light source portion onto a recording layer of the optical disc. The objective lens is provided with a transmittance controlling phase grating in a peripheral region to have a wavelength dependence such that the transmittance for the first laser beam is higher than the transmittance for the second laser beam. The transmittance controlling phase grating is formed as a plurality of concentric grooves. Each of the grooves has a rectangular cross-section in a plane containing an optical axis of the objective lens.